Using the droid market is going to make this step very simple. All droid devices have the android market application(hereby known as app), simply access all apps and find the app called 'Market“.
Once the Market app is loaded click on or tap the app tab
Once the app tab is open you will see a box with a magnifying glass, this is the search box. Type in “irssi-connectbot” and tap the magnifying glass to do a search.
The search will probably list all versions of connectbot make ssure you click on irssi-connectbot
Click on download
Then install
Thats it for installation(told you it was easy)